Overview
The UCC28610DR, produced by Texas Instruments, is a Green-Mode Flyback Controller designed for AC and DC consumer power supply solutions. This controller integrates advanced features to enhance efficiency, reliability, and system cost-effectiveness. It operates in discontinuous conduction mode (DCM) and is suitable for applications requiring low AC line power during no-load operation and high average efficiency. The UCC28610DR features a cascoded configuration that allows fully integrated current control without an external sense resistor, ensuring fast start-up and low standby power consumption.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VDD Voltage | -0.5 | 20 | V | |
| Maximum On Time (Latch-Off) | 3.43 | 3.83 | 4.23 | μs |
| Maximum On Time (Shutdown/Retry) | 3.4 | 3.8 | 4.2 | μs |
| Thermal Shutdown Temperature | 165 | °C | ||
| Thermal Shutdown Hysteresis | 15 | °C | ||
| Package Types | 8-Pin SOIC, 8-Pin PDIP | |||
| Operating Temperature Range | -40 | 125 | °C |
Key Features
- Cascoded configuration allowing fully integrated current control without an external sense resistor.
- Fast start-up with low standby power achieved by cascode configuration.
- Frequency and peak current modulation for optimum efficiency over the entire operating range.
- Green-Mode (GM) burst switching packets to improve no-load efficiency.
- Advanced overcurrent protection limiting RMS input and output currents.
- Programmable opto-less output overvoltage protection.
- Timed overload response with retry or latch-off mode.
- Thermal shutdown and fast latched fault recovery.
- Feedback pin using current rather than voltage to minimize primary side power consumption.
Applications
- Universal input AC and DC adapters (12 to 65 W).
- High efficiency housekeeping and auxiliary power supplies.
- Offline battery chargers.
- Consumer electronics such as DVD players, set-top boxes, DTV, gaming consoles, and printers.
Q & A
- What is the primary function of the UCC28610DR?
The UCC28610DR is a Green-Mode Flyback Controller designed for AC and DC consumer power supply solutions, operating in discontinuous conduction mode (DCM).
- What are the key benefits of the cascoded configuration in the UCC28610DR?
The cascoded configuration allows for fully integrated current control without an external sense resistor, ensuring fast start-up and low standby power consumption.
- How does the UCC28610DR improve no-load efficiency?
The UCC28610DR uses Green-Mode (GM) burst switching packets to improve no-load efficiency.
- What types of overcurrent protection does the UCC28610DR offer?
The UCC28610DR offers advanced overcurrent protection that limits RMS input and output currents.
- How is the overload response programmed in the UCC28610DR?
The overload response is programmed using the MOT pin, allowing for either latch-off or shutdown/retry modes.
- What is the thermal shutdown temperature of the UCC28610DR?
The thermal shutdown temperature is 165°C.
- What are the package types available for the UCC28610DR?
The UCC28610DR is available in 8-Pin SOIC and 8-Pin PDIP packages.
- What is the operating temperature range of the UCC28610DR?
The operating temperature range is from -40°C to 125°C.
- How does the feedback pin of the UCC28610DR minimize power consumption?
The feedback pin uses current rather than voltage, minimizing primary side power consumption during no-load operation.
- What are some typical applications of the UCC28610DR?
Typical applications include universal input AC and DC adapters, high efficiency housekeeping and auxiliary power supplies, offline battery chargers, and consumer electronics.
